Publish Time: 2023-10-11 Origin: Site
HYDRAULIC GEAR PUMP is widely used in various hydraulic systems due to its compact structure, small size, good self-priming performance, insensitivity to dirt, reliable operation, long life, easy maintenance and repair, and low cost. The current development trend of HYDRAULIC GEAR PUMP is high pressure, low flow pulsation, low noise, large displacement, and variable displacement.
Here is the content list:
High pressure of HYDRAULIC GEAR PUMP
HYDRAULIC GEAR PUMP LOW NOISE
Large displacement of HYDRAULIC GEAR PUMP
High pressure is required by the system, and it is also a problem that must be solved for HYDRAULIC GEAR PUMP to compete with plunger pumps and vane pumps. Great progress has been made in the high-pressure work of internal gear pumps, but due to its limitations, if you want to It is very difficult to further increase the working pressure, and the HYDRAULIC GEAR PUMP with a new structure must be developed. Flow pulsation will cause pressure pulsation, which will cause vibration and noise in the system, which does not meet the requirements of the hydraulic system.
Regarding low noise, there has long been a "quiet" hydraulic pump in foreign countries. With the enhancement of people's awareness of environmental protection, the noise requirements for HYDRAULIC GEAR PUMP are becoming more and more stringent. The noise of internal gear pumps is mainly composed of two parts: one is the mechanical noise generated during the gear meshing process, and the other part is the hydraulic noise generated by the impact of trapped oil. The former is related to the machining accuracy of the gear, and the latter mainly depends on whether the pump is completely unloaded. In this regard, HYDRAULIC GEAR PUMP has stable operation characteristics, no trapped oil phenomenon, low noise, etc., so it will have greater development in the future.
For some systems that require fast movement, a large displacement is necessary, but the improvement of the displacement of ordinary HYDRAULIC GEAR PUMP is limited by many factors. In this regard, the balanced compound HYDRAULIC GEAR PUMP has significant advantages, such as 1 set of three idlers The displacement of compound internal gear pumps is equivalent to that of 6 single pumps. The displacement of the HYDRAULIC GEAR PUMP is not adjustable, which limits its scope of use. To change the displacement of HYDRAULIC GEAR PUMP, domestic and foreign scholars have done a lot of research and achieved many research results.
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